 |
loading
419-7172
| Availability: | |
|---|---|
| Item | Specification |
|---|---|
| Part Number | 419-7172 (or 4197172) |
| Product Name | Single Flange Track Roller / Bottom Roller |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Caterpillar D8, D8GC, D8 GC, D8R, D8R II, D8T Dozers |
| Roller Type | Single Flange (Bottom/Lower Track Roller) |
| Single Weight | 91 kgs (200.6 lbs) |
| Material | High-strength alloy steel with induction-hardened wear surface |
| Sealing Type | Floating / Duo-cone seals for contamination protection |
| Application | Supports machine weight and guides the track chain |
| Industry Focus | Mining, Heavy Construction, Land Clearing, Heavy Dozing |
Caterpillar 419-7172 track roller
D8T single flange roller
4197172 bottom roller
CAT D8 undercarriage parts
91 kg track roller for D8 dozer
Replacement bottom roller for D8R
Caterpillar dozer track roller
D8 GC track roller
The Caterpillar 419-7172 Single Flange Track Roller is a genuine OEM-specification undercarriage component designed for Caterpillar D8 series dozers including D8, D8GC, D8 GC, D8R, D8R II, and D8T. This single flange track roller (bottom roller) is a critical load-bearing component that supports the machine's weight and guides the track chain during operation.
The D8 series are large dozers used in mining, heavy construction, land clearing, and heavy dozing applications. The single flange design provides effective track guidance while balancing weight and durability. Manufactured from high-strength alloy steel with induction-hardened tread surfaces, it delivers maximum wear resistance in abrasive conditions.
| Feature | Benefit |
|---|---|
| Single Flange Design | Effective track guidance with balanced weight distribution |
| Induction-Hardened Tread Surface | Exceptional wear resistance in abrasive conditions |
| Floating / Duo-Cone Seals | Advanced sealing prevents contamination and retains lubrication |
| Precision Bearings | Smooth rotation with minimal friction for extended service life |
| Heavy-Duty Construction (91 kg) | Robust build for large dozer applications |
| D8 Series Optimized | Specifically engineered for CAT D8 series dozers |
| Factory Lubricated | Maintenance-free sealed design |
| Direct OEM Replacement | Guaranteed fit and performance |
| Machine Model | Type | Application |
|---|---|---|
| D8, D8GC, D8 GC | Dozer | Mining, heavy construction, dozing |
| D8R, D8R II | Dozer | Mining, heavy construction, dozing |
| D8T | Dozer | Mining, heavy construction, dozing |
| Part Number | Flange Type | Weight | Best Application |
|---|---|---|---|
| 419-7172 | Single Flange | 91 kg | General dozing |
| 620-6380 | Single Flange | 91 kg | General dozing |
| Component | Part Number | Description |
|---|---|---|
| Double Flange Roller | 620-6402 | Double flange roller (96 kg) |
| Idler (Heavy) | 111-1730 | Front idler (294 kg) |
| Idler (Standard) | 111-1729 | Front idler (247 kg) |
| Track Assembly | 654-8598 | Complete track system (2,706 kg) |
Position: This is a bottom/lower track roller - supports machine weight
Lifting Note: At 91 kg, proper lifting techniques and mechanical assistance are recommended
Bolt Torque: Follow Caterpillar OEM specifications for mounting bolt torque
Regular Inspection: Check for seal damage, bearing wear, and tread wear periodically
Lubrication: Factory-sealed; no field lubrication required
Replacement: Replace when tread wear exceeds OEM specifications or when seal failure occurs
| Condition | Action |
|---|---|
| New tread - smooth rotation | Normal operation |
| Moderate tread wear | Monitor regularly |
| Excessive tread wear (flat spots) | Replace roller |
| Seal leakage | Replace roller immediately |
| Bearing noise/play | Replace roller |
| Item | Detail |
|---|---|
| Part Number | 419-7172 / 4197172 |
| Type | Single Flange Track Roller (Bottom Roller) |
| Weight | 91 kg per piece |
| Compatibility | CAT D8, D8GC, D8 GC, D8R, D8R II, D8T Dozers |
| Packaging | Individual crate |
Note: This is a single flange bottom track roller for Caterpillar D8 series dozers. Verify machine serial number and undercarriage configuration before ordering. Due to weight (91 kg), proper lifting techniques and mechanical assistance are recommended during installation.
